记一次python爬虫实战,豆瓣电影Top250爬虫

 1 import requests
 2 from bs4 import BeautifulSoup
 3 import re
 4 import traceback
 5 
 6 def GetHtmlText(url):
 7     for i in range(0,1):        #尝试两次
 8         try:
 9             r=requests.get(url)
10             r.encoding = 'utf-8'
11             r.raise_for_status();
12             return r.text;
13         except:
14             traceback.print_exc()
15             continue
16     return 
17 
18 def GetMovieInfo(url):
19     movieDict={}
20     for page in range(0,10):
21         try:
22             page_url = '?start='+str(page*25)
23             html = GetHtmlText(url+page_url)
24             Soup = BeautifulSoup(html, 'html.parser')
25             movie = Soup.find(name="ol",class_='grid_view') #所有电影信息
26             movieList = movie.find_all(name='li')  #电影信息列表
27             for single in movieList:        #循环单页的电影信息
28                 num = single.find(name='em').string    #电影排名
29                 title1 = single.find_all(name='span',class_='title')
30                 title2 = single.find(name='span',class_='other').string
31                 if len(title1)==2:
32                     movieTitle = title1[0].string+title1[1].string+title2.string
33                 else:
34                     movieTitle = title1[0].string+title2.string
35                 classBD = single.find(name='div',class_='bd').contents    #我也不知道为什么bs给我返回7个节点
36                 movieActor = classBD[1].text
37                 movieRating = re.findall(r'\d?\.\d?',str(classBD[3]))[0]
38                 movieQuote = classBD[5].text       
39                 movieDict['num'] = num
40                 movieDict['movieTitle'] = movieTitle
41                 movieDict['actor'] = movieActor
42                 movieDict['rating'] = movieRating
43                 movieDict['quote'] = movieQuote
44                 printMovieInfo(movieDict)
45         except:
46             traceback.print_exc()
47 
48 
49 def printMovieInfo(Info):
50     try:
51         with open('/home/why/py/movieInfo.txt','a',encoding='utf-8') as f:
52             f.write(str(Info['num']+Info['movieTitle']+'\n'+Info['actor']+'\n评分:'+Info['rating']+'\n评价:'+Info['quote']+'\n'))
53     except:
54         traceback.print_exc()
55 
56 
57 def main():
58     base_url = 'https://movie.douban.com/top250'
59     GetMovieInfo(base_url)
60 main()

结果:

原文地址:https://www.cnblogs.com/Alexzzzz/p/7900299.html